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@ARTICLE{Preusse:1141,
      author       = {Preusse, P. and Eckermann, D.S. and Ern, M. and Oberheide,
                      J. and Picard, R.H. and Roble, R.G. and Riese, M. and
                      Russell III, J.M. and Mlynczak, M.G.},
      title        = {{G}lobal ray tracing simulations of the {SABER} gravity
                      wave climatology},
      journal      = {Journal of Geophysical Research},
      volume       = {114},
      issn         = {0148-0227},
      address      = {Washington, DC},
      publisher    = {Union},
      reportid     = {PreJuSER-1141},
      pages        = {D08126},
      year         = {2009},
      note         = {Jens Oberheide is supported by DFG CAWSES grant OB 299/2-2.
                      Part of the work of Manfred Ern was supported by DFG CAWSES
                      grant ER 474/1-1. Richard H. Picard acknowledges support
                      from NASA SABER Program Office and Dr. Kent Miller of U.S.
                      Air Force Office of Scientific Research. We thank three
                      anonymous reviewers for their helpful comments on the
                      determination of the intermittency factors, discussions, and
                      data presentation.},
      abstract     = {Since February 2002, the SABER (sounding of the atmosphere
                      using broadband emission radiometry) satellite instrument
                      has measured temperatures throughout the entire middle
                      atmosphere. Employing the same techniques as previously used
                      for CRISTA (cryogenic infrared spectrometers and telescopes
                      for the atmosphere), we deduce from SABER V1.06 data 5 years
                      of gravity wave (GW) temperature variances from altitudes of
                      20 to 100 km. A typical annual cycle is presented by
                      calculating averages for the individual calendar months.
                      Findings are consistent with previous results from various
                      satellite missions. Based on zonal mean, SABER data for July
                      and zonal mean GW momentum flux from CRISTA, a homogeneous
                      and isotropic launch distribution for the GROGRAT (gravity
                      wave regional or global ray tracer) is tuned. The launch
                      distribution contains different phase speed mesoscale waves,
                      some of very high-phase speed and extremely low amplitudes,
                      as well as waves with horizontal wavelengths of several
                      thousand kilometers. Global maps for different seasons and
                      altitudes, as well as time series of zonal mean GW squared
                      amplitudes based on this launch distribution, match the
                      observations well. Based on this realistic observation-tuned
                      model run, we calculate quantities that cannot be measured
                      directly and are speculated to be major sources of
                      uncertainty in current GW parameterization schemes. Two
                      examples presented in this paper are the average
                      cross-latitude propagation of GWs and the relative
                      acceleration contributions provided by saturation and
                      dissipation, on the one hand, and the horizontal refraction
                      of GWs by horizontal gradients of the mean flow, on the
                      other hand.},
      keywords     = {J (WoSType)},
      cin          = {ICG-1 / JARA-HPC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB790 / $I:(DE-82)080012_20140620$},
      pnm          = {Atmosphäre und Klima},
      pid          = {G:(DE-Juel1)FUEK406},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000265667300006},
      doi          = {10.1029/2008JD011214},
      url          = {https://juser.fz-juelich.de/record/1141},
}